| HEALTH AND WELLBEING: Vanessa's right to walk and run

This article originally appeared in the Daily Telegraph in 1999.
An encouraging development in surgery for children born with a shortened limb has raised the hopes of Emma Burns. By EMMA BURNS
Fourteen hours after our daughter Vanessa was born at home, a GP arrived for the routine post-natal checks. I had fed Vanessa, bathed her, changed her nappy, thanked God for her and held her as she slept. So I was confident as well as exhausted as I lounged on the bed, watching the GP examine her in the late afternoon sunshine. Downstairs, my husband, Stephen, played with our 16-month-old son, Elliot, and chatted to my parents.
"Oh, look, her left femur is a bit short," the doctor said suddenly. The midwife, who was standing alongside him, nodded in agreement.
"What does that mean?" I asked calmly. They didn't know; they had never seen anything like it before. In soothing tones, the GP murmured something about seeing a specialist for a scan, probably in London.
I didn't feel worried as I carried Vanessa downstairs to be admired. We unwrapped her, pored over her and decided we could see nothing wrong. The midwife, who knew better, came back with a phone number for steps, the charity for children with lower limb abnormalities. We had just become one of the 26 or so families in Britain each year to have a baby with a limb reduction defect.
Vanessa has a proximal focal femoral deficiency. That means she has a small and shallow hip, short thigh, missing knee ligaments and a slightly short lower leg. It is a developmental problem: the blood supply in her leg did not form properly in the early weeks of my pregnancy, possibly because the signalling cells did not switch on at the right moment.
At just five weeks, Vanessa was strapped into a special harness that held her legs up and outwards so the femur was pushed into the hip joint. She wore it for three months. Her hip is now stable but, without surgery, her left leg, which was one centimetre short when she was born, is forecast to be a crippling 12-15cm short when she is fully grown.
Vanessa's first few weeks were a whirl of frustrating hospital appointments, during which we found out very little. It took both Stephen and me to pin her scrawny little two-day-old body down on the X-ray plate, and we wept over the unarguable proof that her left thigh bone was only two thirds the length of the right one and bent. Strangers, spotting the harness, would ask: "What's wrong with the baby?" It was only when we called steps that we were given sensible, straightforward information by sympathetic listeners.
They told us about leg lengthening, a terrible process whereby the thigh is cut through in the middle and pins screwed through at both ends. These are attached to a frame, known as an external fixator, and must be turned every day to create a tiny gap, which the bone grows to fill. The sites where the pins enter the skin are raw, prone to infection and must be cleaned daily despite the pain. The frame stays on for up to a year or more while the bone grows and then heals.
Problems are created not so much by lengthening the bone, but by stretching the muscles and blood vessels. This causes pain and stiffness, and sometimes dislocation of the knee.
The worst moment came during our appointment with the orthopaedic consultant at Great Ormond Street Hospital for Children. He told us he would not lengthen Vanessa's femur more than once, or by more than 5cm, because, in his experience, children who had repeated operations ended up with knees so stiff they could not walk. That left two options: either he could lengthen her lower leg (leaving her left knee much higher than her right), or he could amputate her foot and fuse her knee so that a false lower leg and knee joint could be fixed on to the stump. He seemed surprised when I looked at my tiny baby and burst into tears.
That weekend was unbearable; the choice seemed impossible. Either we put Vanessa through a protracted procedure, with all its pain and disruption, just for her to end up with legs that were a mess, or we let them amputate her perfect, beautiful little foot. And all because of a discrepancy that, at this stage, was still less than half an inch.
Then I remembered that steps has strong links with the Sheffield Children's Hospital. Blinded by the southerner's prejudice that Great Ormond Street must be best, we had not realised that Sheffield is the primary centre of excellence in Britain for leg lengthening and was the first place in the country to open a special limb-reconstruction unit.
Prof Mike Saleh, who runs the unit, is probably one of the top five surgeons in the world in this area. He and his team have carried out almost 800 lengthening operations since 1985. On the long train journey, we psyched ourselves up to hear that he, too, believed amputation was the answer. But no - he was happy to carry out repeat operations on Vanessa's femur, gaining perhaps 3cm each time.
The affected leg would be thinner, and her knee would not bend as well (she would not be able to run as an adult), but she would have two functioning legs that were her own, within 1-2cm of each other in length.
Elated, we set about changing our lives in anticipation of these yearly operations, to begin initially after Vanessa's second birthday and continue until she is seven, and then again from age 10 to 14.
We moved 150 miles from our home in Sevenoaks, Kent, to be closer to Sheffield, investigated sympathetic schools, and bought a house with a downstairs bedroom and bathroom. At 16 months, in special shoes with a 3cmlift, Vanessa walked. Now, almost two and a half, and with a 5cm discrepancy, she runs, jumps, dances, walks on tiptoe and up and down stairs - and scrambles up the climbing frame faster than her brother. As I watch her beaming at everyone she meets, revelling in hospital visits because they give her a chance to charm more people, and screaming outrage if she is thwarted, I know she will cope with whatever comes her way.
But we have even more reason for hope. Next year, Sheffield might become the first children's hospital in Britain to use what seems to be a greatly improved device, an internal fixator called the Albizzia nail. Prof Saleh has recruited its inventor, French surgeon Jean-Marc Guichet, to work in Sheffield for at least two years, so he and his team can evaluate the technique and familiarise themselves with it.
The Albizzia nail is a telescopic tube with a ratchet inside. It is inserted down through the bone marrow after the femur has been cut in half from the inside with a special saw. After it has been screwed in position, the patient is taught to work the ratchet by movements of the lower leg, lengthening the bone by 1mm a day. The required length is reached after two or three months, but the rod is left in place for a year while the bone heals.
The device has disadvantages. It can be used only when the child is fully grown, aged 13-plus, and it requires at least one hour and preferably four hours of physiotherapy every day for 15 months. Such intensive physio would be extremely disruptive to any child's education - and it is simply not offered in Britain. (Even children with external fixators need more physio than they get here.)
During the months of leg-lengthening, the child is still on crutches or in a wheelchair, though that will not be necessary if a computer-controlled version is developed. While waiting for surgery, the child must wear an enormous boot, with a 10cm lift, which might itself cause problems as thebody deforms to compensate.
The advantages are that there are no pin sites to clean; no hurry to get the device off before the bone is properly healed; no cold, bulky frame to disturb sleep; far less risk of the bone bending as it grows - and the huge amount of physio means the leg should eventually look and work much like a normal one. Best of all, it requires far fewer operations.
If the Albizzia nail turns out to be the answer for Vanessa, her childhood will be almost normal and she will grow up able to walk, run and dance on her own two feet. We could want for nothing more.
17 January 2006 update: Vanessa is now nine, with a discrepancy of just over 6.5cm and since Professor Saleh left Sheffield for Norwich two years ago, has become a patient of Mr Fernandes. The current forecast for her discrepancy at maturity is 8cm: we have been very lucky. Perhaps the cranial osteopathy she has had every few months since she was a baby has also helped. She has had no operations so far and we still want her to have nail lengthening, probably at 14 and 16, preferably with an Albizzia nail as that allows for more physio which seems to make a difference to the results. Mr Guichet has moved back to Marseilles where we have been to see him. His website is www.allongement-os-grandir.com. He seems to be operating successfully on PFFD patients. We feel very lucky that Mr Fernandes approves of nails and wants to carry out some nail lengthenings himself quite soon. (Although I was over optimistic in my expectation that nails would be in use in Sheffield in 2000 - as far as I know, only one teenager with PFFD has so far had a lengthening with a nail in the whole of the UK.) |